Tom lightly touches Jane's back with two sharp pins but Jane only feels one sharp point. Why?
A. Tactile receptors on the back have small receptive fields.
B. Jane is an insensitive person.
C. Tactile receptors on the back have large receptive fields.
D. The back has fine two-point discrimination.
E. There is a high density of tactile nerve fibers on the back so she felt a sharp, discriminate pain.
Answer: C
You might also like to view...
Name the three groups of muscles constituting the intrinsic muscles of the hand. Briefly describe the structure and function of each of these groups
What will be an ideal response
What type of membrane proteins form a passageway through the plasma membrane?
A. carrier proteins B. receptor proteins C. enzymes D. channel protein E. marker molecules
A drug that decreased calcium levels in a muscle cell and thereby lowered the number of crossbridges formed during the heart's contractions would be a
A. positive chronotropic agent. B. negative chronotropic agent. C. positive inotropic agent. D. negative inotropic agent.
Why is there a limit to all rotational movements between bony elements in the body?
What will be an ideal response?